76316566 has 4 divisors (see below), whose sum is σ = 114474852. Its totient is φ = 38158282.

The previous prime is 76316557. The next prime is 76316567. The reversal of 76316566 is 66561367.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66561367 = 887 ⋅75041.

It is a super-3 number, since 3×76316566³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76316567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19079140 + ... + 19079143.

It is an arithmetic number, because the mean of its divisors is an integer number (28618713).

Almost surely, 2^76316566 is an apocalyptic number.

76316566 is a deficient number, since it is larger than the sum of its proper divisors (38158286).

76316566 is a wasteful number, since it uses less digits than its factorization.

76316566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38158285.

The product of its digits is 136080, while the sum is 40.

The square root of 76316566 is about 8735.9353248522. The cubic root of 76316566 is about 424.1696655446.

The spelling of 76316566 in words is "seventy-six million, three hundred sixteen thousand, five hundred sixty-six".